Injector-valve fob waste-conveyers



L. E, JONES. INJECTOR VALVE FOR WASTE CONVEYERS. APPLICATION FILED DEC. 20, 1916.

1,316,449. PatentedSept. 16,1919.

UNITED STATES PATENT OFFICE.

LUTHER E. JONES, 0E PoETLAND, TENNESSEE.

INJECTOR-VALVE FOR WASTE-COR'VE YERS.

To all whom it may concern:

Be it known that I, LUTHER E. .loNEs, a citizen of the United States, residlng at Portland, in the county of Sumner and State of Tennessee, have invented new and usefullmprovements in Injector-Valves for lVaste-Con'veyers, of which the following 1s a specification. I

This invention relates-to an injector valve which is primarily intended to be used in connection with the conveyers applied :to wood-working machines to enable the waste material produced thereby to be conveyed from the machines by the steam exhausted from the machinery employed to operate the wood-working machines.

The primary object of the invention 15 to provide an inexpensive valve of th1s character wherein the flowof steam through the valve is automatically controlled by the pressure of the steam on a pivotally mount- 7 ed vieldable supported plate which also obviates the likelihood of the steam interfering through back pressure with the operation of the machinery which is employed to operate the wood working machine.

lVith' these and other objects in view, the invention resides in the novel combination and arrangement of parts, which will be hereinafter described and particularly pointed out in the claim.

The preferred embodiment of the invention has been illustrated in the accompanying drawing, although no restrict ion is necessarily made to the precise details of construction therein shown, as changes, alterations, and modifications, within the scope of the claim may be resorted to when desired.

In the drawing:

Figure 1 is a view in side elevation of a steam operated wood working machine to which is shown applied a conveyer provided with an injector valve constructed in accordance with the invention.

Fig. 2 is a vertical transverse section on the line 22 of Fig. 1.

Fig. 3 is an enlarged sectional view through the injector valve and the end of the conveyor in which the valve is mounted.

Fig. A is a section similar to Fig. 3 showing a slightly modified form of the invention.

Like characters of reference denote corresponding parts throughout the several views in the drawing.

Specification of Letters Petent., -Patented Sept, 16, 1919,

Application filed December 20, 1916. Serial No. 13s,os1. Y

Referring now tothe drawing in detail,

the latter 1A designates a portion of a wood working machine including a table 13 and a circular saw C, the shaft of which isrotated through its connection with a steam operated engine D,with the exhaust of which is connected a waste pipe E. v

Supported beneath the table 13 in any suitable manner is a conveyer including a delivery-tube 5' having an angularly extending portion 6 and a threaded end 7 said tube having formed therein betweenits ends a drain opening 8 to permit the escape of accumulated moisture due to the condensation of steam admitted to the conveyer tube in a manner hereinafter described.

A collecting hood 9 having communication with the interior of the conveyer delivery tube 5 adjacent the threaded end thereof is connected with the table of the wood working machine A beneath the saw" slot therein to provide the collecting hood with an open mouth 10 into which extends the saw C through a slot 11 in the upper portion of the V-shaped end wall 12 of the hood 9, said end wall being so arranged with relation to the saw 0 that the lower portion of the end wall forms a deflecting surface fordirecting the waste material produced by the saw through the restricted outlet opening at the lower end of the hood 9.

A cap 13 closes the threaded end of the delivery tube 5 and has mounted therein an injector valve, the casing of which is in the form of a nozzle 14 extending within the delivery tube 5 beneath the collecting hood 9 and provided with a tapering and longitudinally extending valve chamber 15, said nozzle having connection exteriorly of the de livery tube with the waste pipe E, so that the exhaust steam from the engine D will.

be injected by the valve into the delivery tube to cause the waste from the saw C to pass through the hood 9 and through the tube 5.

j A steam operated. valve 16 comprising a plate and controlling the passage of the exhaust steam through the nozzle 14 is ar ranged within the valve chamber 15 and is hingedly connected at its rear end with said nozzle, said plate being crescent shape in cross section at its forward end and normally held in an inclined position within the nozzle by a coiled expansion spring 17 arranged beneath the valve and connected with the nozzle.

In the modified form of valve shown in Fig. l in the drawing, the valve 16 has connected therewith a stem 18 passing through the nozzle and delivery tube5, said stern having connected with its lower end a lever 19 mounted to turn between its ends on the delivery tube 5 and having adjust-ably mounted thereon a weight 20 no'rmallyserving to hold the valve in an inclined position as shown. 1

Through the provision of an injector nozzle constructed as above described,"it will at once be apparent that when the saw C is not in use, or when cutting very light material, the pressure of the exhaust steam in the waste pipe E is not sufficient to depress the valve 16, so that the valve retards the passage of the steam through the nozzle and admits only a suflicient quantity of steam Within the conveyer tube 5 to cause the Waste from the saw C to be sucked through the hood and carried through the conveyer tube.

lVhen heavy material is 'beingout by the saw C, the pressure of the exhaust steam in the pipe E is consequently greater and sufficient to move the valve 16, so that a greater quantity of steam is injected into the conveyer tube 5 to suck therein and discharge from the tube, the increased quantity of waste material produced by the saw.

From the foregoing description taken in connection with the accompanying drawing it is apparent that an inexpensive injector valve for waste conveyors has been provided which thou 'h inexpensive of manufacture is highly eficient tor the purposes stated.

Havingthus described the invention, what is claimed as new is:

An injector valve for waste receptacles, comprising a body open at one end and having a reduced connection at the other end for the application thereto of a steam pipe, said body being interiorly enlarged in advance of the reduced connection and having an interior concave surface, a concaved plate hingedly arranged and operating wholly Within the body and cooperating with said surface, and means for yieldingly holding the free end of the plate in predetermined relation to the discharge end of the body,

sald plate adapted to yield under the presvsure of the steam thereon.

In testimony whereof I afiiX my signature.

LUTHER E. JONES.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. G. 

